Tool for dressing emery-wheels



no Model.)

H. K. FOR-BIS I TOOL FOR DRESSING EMERY WHEELS.

No. 367,287. PatentedJulyZG, 1887.

WITNESSES I I JAI/VEN'TOR WW w u, PETERS. Pmmmm n h". Wuhinglon. o 0" UNITED STATES HARBERT K. FORBIS,

OF COLUMBUS, OHIO.

TOOL FOR DRESSING EMERY-WHEELS.

SPECIFICATION forming part of Letters Patent No. 367,287, dated July 26, 1887.

I Application filed June 2, 188d. Serial No. 203,951. (No model.)

.To all whom it may concern:

Be'it known that I, HARBERT K. Foams, a citizen of theUnited States, residing at Columbus, in the county ofFranklin and State of Ohio, have invented certain new and useful Improvements in Tools for Dressing Emery- Wheels, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain improvements in tools for truing and removing the glaze from the peripheries of emery or other wheels; and my object is to produce a simple economical, and practical tool, the peculiarities of which 1 will hereinafter fully set forth, and particularly point out in the claims.

I In the accompanying drawings, making part of this specification, Figure 1 represents a plan view of my improved device; Fig. 2, a side elevation of same; Fig. 3, a sectional view taken through the abrading-wheel, and Fig. 4 a'detail perspective view of the said abrading-wheel.

In the-figures, A and B represent two arms which cross each other near their forward ends, and which are suitably pivoted together. The short ends, A and B,of thesearms are pro-' vided with conical bearings, which receive the cone-shaped ends ofa spindle or shaft, 0. The eyes in the short arms of these levers are provided with t-himble-bearings of hard unannealed iron, which may be secured in'any suitable manner in said eyes. Upon this spindle is a wheel having a zigzag periphery, the two being made integral or otherwise, if desired.

The wheel is made of'cast-iron, and being unannealed is very hard and at thesame time inexpensive, and the diameter of its periphery or face is about the sixteenthof an inch. A lug, X, is formed-upon the under side of one of the arms, which may bear againsta rest connected to the frame which holds the emerywheel.

When the emery-wheel is caused to revolve rapidly, the zigzag wheel is made to come in contact with its peripheryand the long ends of the, arms are manipulated by the operator either directly toward the emery wheel. or varied slightly to one side or the other, asthe exigencies of the case may require. The two wheels revolving at greatly different velocities enables the smaller or zigzag wheel to abrade or pick and remove all glaze or unevenness from the periphery of the emery wheel, and thus clean and surface it.-

A set-screw, D, passes through one of the long arms of the tool and its end rests against the inner face of the other arm for the purpose of preventing the arms closing too tightly upon the spindle. The outer ends of the long portions of the arms are held by the operator and may readily be opened at will to release the wheel and replace it by another when it has become worn.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a tool for truing emery and othcrlike wheels, the combination of the pivoted levers having bearings in their forward ends, of the cast zigzag abrading-w'heel provided with a suitable spindle the ends of which rest in the bearings in the pivoted levers, substantially as specified. I

2. In a tool for truing emery and other like wheels, the combination, with an abradingtool, of a holder consisting of the two arms or levers pivoted together, said arms having .inserted in their forward ends, in suitable eyes therein, bearing-blocks for the reception and retention of the said abrading-tool, substantially as specified.

3. In a tool for truing emery or otheiwike wheels, the combination, with the pivoted levers, of the abrading-wheel-held between the shorter arms of the levers, and the setvscrews passing through one of the arms of said levers,

substantially as specified.

4. An abra'ding-wheel consisting of a body having a zigzag periphery, and a spindle cast integral therewith, substantially as described.

In testimony whereof I- affix my signature in presence of two witnesses.

HARBERT K. Foams. \Vitnesses: I

L. A. EADER, JNo, FRAAS, Jr. 

